Nut-lock.



No. 727,314. PATENTED, MAY 5, 1903.

J. A. DUFFY.

NUT LOCK.

APPLICATION FILED JUNE 17. 1902.

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' J. A. DUFFY.

NUT LOOK.

APBLIOATION FILED JUNE 17. 1902.

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UNTTEE- STATES Patented May 5, 1903.

JOHN A. DUFFY, OF POMONA, CALIFORNIA.

NUT-LOCK.

' SPECIFICATION formingpart of Letters Patent No.727,314, dated May 5,1903. Application filed June 17, um. Serial No. 112,073. we model.)

To all whom it may concern:

Be it known that I, JOHN A. DUFFY, a citizen of the United States,residing at Pomona, county of Los Angeles, and State of California, haveinvented new and useful Improvements in Nut-Locks, of which thefollowing is a specification.

My invention relates to new and useful improvements in nut-locks adaptedto be used in connection with nuts on railways, wagons,

cars, bridges, &c.; and its object is to provide a combined washer andlock which is cheap and durable and can be readily removed or replacedwithout the services of an expert.

l/Vith the above and other objects in view the invention consists in thenovel construction and combination of parts hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings,showing the preferred form of my invention, and in which Figure 1 is aperspective View showing the nut-lock in position upon a'rail. Fig. 2 isa view of a blank from which the lock is formed. Fig. 3 is a detail viewof a modified form of lock. Fig. 4 is a view of the blank from which itis formed. Fig. 5 is a perspective view of a second modified form oflock. Fig. 6 is a further modification. Fig. 7 is a perspective viewshowing another form of lock in position upon a raiL, Fig. 8 is a planview of the blank of said modification. Fig. 9 is a detail View of astrengthening-bar for said lock. Fig. 10 is a perspective view of thelock shown in Fig. 1, the same being provided with means for securing ata point removed from the nut; and Fig. 11 is a plan view of the blankfrom which said lock is formed.

Referring to the figures by numerals of reference, 1 is a washer havingan aperture 2 therein for the reception of a bolt 3. One end of thewasher is bent upon itself to form a locking portion 1, and the edge 5thereof is turned inward and serves to hold the portion 4 spaced fromthe washer. The edge 5 and the lock etare provided at the center with arecess 6 for the reception of the nut 7 of the bolt. Arms 8 are formedat opposite sides of the washer and are adapted to be bent over the lockL and hold it in proper relation to the washer.

In use the washer is placed on the bolt and isclamped against thefish-plate by the nut 7. The tread and base of the rail prevent thewasher from turning. To lock the nut, the portion 4 is swung intoposition at opposite sides thereof and held there by the arms 8, whichare turned thereover.

If desired, the arms 8 may be dispensed with, as shown in Fig. 3, and insuch case the blank would be stamped in the form shown in Fig. 1 from asingle sheet of metal. Also, if desired, the arms 8 can be located atthe center of the blank and both ends of said blank made similar. Ifconstructed in this manner,the two ends would be pressed against theopposite sides of the nut and the recesses 6 receive the same.- The-arms8 would extend over the adjacent edges of the ends and hold themsecurely against outward movement. It is not necessary, however, toemploy these arms with this construction, for the ends of the blank canbe recurved, as shown at 9, and placed into engagement with each other.

In Fig. 7 I have shown a form of lock in which a strengthening-bar 10 isemployed in addition to the look before described. This bar ispreferably formed of cast metal, and the central portion 11 is reducedto receive the nut '7. An aperture 12 is formed in the reduced portionto receive the bolt 3, and an angular head 13 is arranged at each end ofthe bar. The end 5 of the lock is adapted to extend over these heads 13and are held in position thereon by the arms lal. These arms are similarto the arms 8, but are located at one end of the blank instead of atpoints be tween the ends. The bar 10 prevents the look at from beingmashed or otherwise injured by blows thereon.

On bridges or at other places where it is desirable or necessary tosecure the washers at points removed from the nuts an arm 15 may beprovided, the same being merely a continuation of the fiat end of thewasher 1.-

This arm, if desired, may be provided with oppositely-extending hookedsecuring-arms 16, adapted to engagea strip of metal or other material,and a screw 17 may, if desired, also be employed to secure the arm 15 tosaid strip.

In the foregoing description I have shown the preferred forms of myinvention; but I do not limit myself thereto, as I am aware thatmodifications maybe made therein without departing from the spirit orsacrificing the advantages thereof, and I therefore reserve the right tomake such changes and modifications as fairly fall within the scope ofmy invention.

Having thus fully described my invention, what I claim as new is- 1. Thecombination with a washer, of an extended portion bent upon the washerto provide a locking member, the edge of the said portion being turnedinwardly and engaging the washer, to hold said member spaced apart fromthe washer, and means to hold the edge of said portion in engagementwith the washer.

2. The combination with a washer; of an eX- tended portion bent upon thewasher to provide a locking member, a bolt-receiving bar interposedbetween said member and the washer, and an arm to the washer adapted toengage the member and retain it upon the bar.

3. The combination with a washer, of an extended portion bent upon theWasher to provide a locking member, the edge of said portion being bentinwardly and engaging the washer to hold the said member spaced apartfrom the washer, and an arm integral with the washer and engaging thelocking member to hold it in position.

4. The combination with a washer, of a nut-engaging portion bent uponthe washer to provide a locking member, means for spacing the lockingmember apart from the washer, and an arm formed integral with the washerand adapted to be bent over the lock ing member to hold it and thespacing means in position.

5. The combination with a washer, of oppositely-arranged recessedportions bent toward each other to form a locking member, substantiallyparallel to the washer, the recesses registering to form a nut-receivingaperture, and means integral with said members to space them apart fromthe washer.

6. The combination with a washer, of oppositely-arranged recessedportions bent toward each other to form a locking member, the recessesregistering to form a nut-receiving aperture, the edges of the recessedportions being turned inwardly and engaging the washer to space thelocking member away from the washer, and oppositely-arranged laterally-projecting arms integral with the washer and adapted to be bent overthe locking member to hold it in position.

7. The combination with a washer, of an extended portion bent upon thewasher to provide a locking member, means integral with the member tohold it spaced apart from the washer, and means integral with the Washerto hold the locking member in position.

8. The combination with a washer, of an extended portion bent upon thewasher to provide a locking member, means to hold the member spacedapart from the washer, and means integral with the washer to hold thelocking member in position.

In testimony whereof I aftix my signature in presence of two witnesses.

JOHN A. DUFFY.

Witnesses:

F. LLEWELLYN, ROBERT G. LOUCKS.

